From: Iceman <iceman@iuse.se>
Date: Fri, 30 Jan 2015 14:17:07 +0000 (+0100)
Subject: Update cmddata.c
X-Git-Tag: v2.0.0-rc1~34^2
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/refs/pull/53/head

Update cmddata.c

as suggested,  a bitwise bounds check in cmddata.
---

diff --git a/client/cmddata.c b/client/cmddata.c
index cf4dc6b9..25d752f6 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -57,9 +57,8 @@ void printDemodBuff()
 	}
 	if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
 		
-	// equally divided by 16
-	if ( bitLen % 16 > 0)
-		bitLen = (bitLen/16);
+	// ensure equally divided by 16
+ 	bitLen &= 0xfff0;
 	
 	for (i = 0; i <= (bitLen-16); i+=16) {
 		PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
@@ -193,6 +192,11 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen)
     return;
   }
   if (bitLen>512) bitLen=512;
+  
+  	// ensure equally divided by 16
+ 	bitLen &= 0xfff0;
+
+
    for (i = 0; i <= (bitLen-16); i+=16) {
     PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
       BitStream[i],